Automatic train-stop.



S. ROGERS.

AUTOMATIC TRAIN/STOP. APPLICATION IIILEDEEBA. 1914.

Patented Dec. 29. 1914 V UNITED STATES PATENT OFFICE.

SOLOMON ROGERS, Oil? CHATTANOOGA, TENNESISEE, ASSIGNOR. O F ONE-FOURTH TO WILLIAM BUFOBD, or cHa'r'rANoocA, TENNESSEE.

AUTOMATIC TRAIN-STOP.

To all whom it may concern Be it-known' thatI, Sonouox Rooms, a citizen of the United States, residing at Chattanooga, in the count} of Hamilton my purpose to provide an apparatus of the class described whereby the an brake system.

of a car or train will be automatically brought into'servicje in the event ofsuch car or train entering an occ'upiedblock against a. danger sign'al'and wh ch wlllembody few parts and these so correlated and arranged as toreduce thcpo'ssibili ty of derangement to a minimum; 1 I

It is also my purpose to provide an'apparatus of the typeset forthwhich will embrace the desired features-of. simplicity, eliimoney and durability and one which may be installed and maintained at a, minimum expense. p p

"W 1th the above and other objects in view,

the invention consists in the Construction;

combination and arrangement of parts here inafter set forthin and-falling within the scope of theclaims. v i

In the-accom-panying drawing; Figure 1 is a transverse sectional view through a trackway and locomotive thereon showing the relative positions of the car carried mechanism and the signal blade. Fig. 2 isa dim grannnatic' view of the car-carried mechanism, the same. being shown on an enlarged scale and pa rtl v in section.

Referring now to the drawing in detail. 1 designates a locomotive adapted to travel 'over the trackway 2, avhilc 3 indicates the standard or post of a semaphore, and 4 the signal hlade pivoted to the upper. end of the standard and capable of movement to clear and danger position. Y

5 indicates the train linoair pipe. or brake pipe of the airlu'alv'e system of the train or car, such pipe cxtendin; into the rah of the locomotive and is providrd with the usual ngineers valve (3. 'lzip wd onto the por tion otthe. train-line air pipcwitlnn the Specification 0.! Letters Patent.

Application filed February 4, 1914. Serial No. 816,543.

locomotive is a branch pipe? opening into vertical portion. ,Connected in the vertical with a horizontal handle 10, while uprising from the horizontal portion of' tl e pipe 7 in proximity to the stem of the .valve 9 is a. pivot pin 11. A vertical shaft 1'2 projects through the roof of the cab of the lOCOlTlO. tive and has the lower end-thereof formed with a socket 13 receiving the pin-11.0n the respective portion of the pipei' whiltonnected to the upper end of the shaft12 and arranged at right angles theretois'la lever 1-; normally held at right angles tot he path of movement of the ca r by a spring 15.

Projecting outwardly from the shaft 12 adjacent to the lower endtliereotis anarm It} provided with a dependingfi nger'l't' ter-l minating atone side of' the handle 10 of. the

Paaae a 29, 1914.

-.'the atmosphere asat '8 andformed with a portion of the pipe 7 is a cut ofi'valv'e 9- 'having the vertical stem thereof provided valve 9 and adapted when-tl'ie'shaft l), is"

I rotated to swing the l'iandlefl o sofl sto open thevalve and establish{communication l,-' tween the train line air. pipeand the atmosphere.

In practice, when a signal hlad'e is thrown to danger position, the outer. end of such blade is disposed in the path of movement of the outer-end of the arm 14 of an oncomin;' car and in the event of the carpassing the danger signal the outer end of the arm H contacts with the signal blade and the shaft 1) is rotated against the action of the spring 15. in the rotation of the shaft 12, the finger 17 on the arm ltrmoves the handle 1 of the valve 9 therclrv ening-the latter and bleeding the train line air pipe. eroding the release of the arm 14 by the signal lade. the spring 15 restores such arm to normal position while the valve 9 remains open and to close the latter the handle lfi is grasped by the engineer and swung to closed position;

I claim 1. The combination with the train line air pipe. of a branch pipe connected thereto n valve in said branch pipe. a handle for said valve. a piv t pin carried by said pipe adjaur'lt to said valve. a shaft. ha ing one end thereof socheted to recei'c said pin. a lever carried bv the other end of said shaft. an arm extending outwardly from said shaft and adapted v hen the latter is rotated to Sue engage said handle and open the valve, and means for operating said lever to rotate said shaft.

2. The combination with the train line air pipe, of a branch pipe connected thereto, a valve in said branch pipe, a handle for said valve, a pivot pin carried by said pipe adjacent to said valve, a shaft having one end thereof socketed to receive said pin, a lever.

carried by the other end of said shaft, an arm extending outwardly from said handle and adapted when the latter is rotated to engage said handle and open the valve, means for operating said lever to rotate said shaft, and means holding said lever in normal position and adapted to restore the same to such position.

3. [he combination with the train line air pipe, of a branch pipe connected-thereto and having a horizontal portion, a valve connected in said horizontal portion, a handle on said valve, a pivot pin carried by the horizontal portion of said branch pipe, a vertical shaft having the lower end thereof socketed to receive said pin, a lever connected to the upper end of said vertical shaft, an arm projecting outwardly from said shaft, a finger depending from said arm, means for actuating said lever to rotate said shaft whereby said finger will engage said valve handle to open the valve, and means for restoring said lever to normal position.

In testimony whereof I affix my signature in presence of two witnesses.

: SOLOMON ROGERS. Witnesses:

Onanun HISON, O. J. LY'ILE. 

